CN103787211A - Anti-fall control device for tower crane lifting - Google Patents
Anti-fall control device for tower crane lifting Download PDFInfo
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- CN103787211A CN103787211A CN201410039425.3A CN201410039425A CN103787211A CN 103787211 A CN103787211 A CN 103787211A CN 201410039425 A CN201410039425 A CN 201410039425A CN 103787211 A CN103787211 A CN 103787211A
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- jacking
- pivot shaft
- pawl
- supporting seat
- climbing
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- 230000009194 climbing Effects 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000000725 suspension Substances 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明公开了一种塔机顶升防脱控制装置，属于塔式起重机技术领域，包括爬升架（1）和踏步（6），爬升架包括油缸梁、顶升油缸和顶升横梁，油缸梁上安装有爬爪（3）；踏步安装在标准节外侧，爬爪为悬挂棘爪，悬挂棘爪通过棘爪轴（3-1）铰接连接在焊接于油缸梁上的耳板（2-1）上，棘爪轴中心与标准节主弦杆之间的距离小于悬挂棘爪的长度；踏步中间设有用于支撑顶升横梁支撑轴（5-2）的固定孔（6-1），上下两端设有定位槽（6-2）；顶升横梁两端设有伸缩机构。本发明爬升架通过标准节踏步时无需人工操作，顶升横梁通过伸缩支撑轴穿入标准节踏步的中心孔内，并用安全销给伸缩支撑轴定位，有效防止油缸伸缩误操作，安全性和可靠性高。
The invention discloses a tower crane jacking anti-falling control device, which belongs to the technical field of tower cranes and comprises a climbing frame (1) and a step (6). The climbing frame includes an oil cylinder beam, a jacking oil cylinder, a jacking beam, and an oil cylinder beam Climbing claws (3) are installed on the top; the steps are installed on the outside of the standard section, and the climbing claws are suspension pawls, which are hinged to the lug plates (2-1) welded on the cylinder beam through the pawl shaft (3-1). ), the distance between the center of the pawl shaft and the main chord of the standard section is less than the length of the suspension pawl; there is a fixing hole (6-1) in the middle of the step for supporting the support shaft (5-2) of the jacking beam, and the upper and lower Positioning slots (6-2) are provided at both ends; telescopic mechanisms are provided at both ends of the jacking beam. The climbing frame of the present invention does not need manual operation when stepping through the standard section. The jacking beam passes through the telescopic support shaft into the center hole of the standard section step, and uses the safety pin to position the telescopic support shaft, which effectively prevents the oil cylinder from telescopic misoperation, and is safe and reliable. high sex.
Description
Technical field
The present invention relates to a kind of anticreep control setup, specifically a kind of tower machine jacking anticreep control setup, belongs to tower crane technical field.
Background technology
Tower crane accidents mostly occurs in Assembly &Disassembly process according to statistics, and safety problem when jacking is particularly outstanding.In existing design, as depicted in figs. 1 and 2, the climbing support 1 of tower crane mainly comprises oil cylinder beam 2, climbs pawl 3, jacking cylinder 4 and jacking cross beam 5, climbing support 1 is supported on marking time on 6 upper surfaces of main chord of standard section 7 by climbing pawl 3, bottom connects jacking cross beam 5 by jacking cylinder 4, is supported in 6 the circular groove of marking time.Realizing the conversion of jacking cross beam between marking time up and down by jacking cylinder flexible supports.With flexible jacking cross beam the locking and unlocking on marking time of realizing of locking pin.This kind of version exists that following some is not enough: (1) climbing support climb and decline process in, climb when pawl is marked time by standard knot and need to assist manually, there is potential safety hazard.(2) in jacking process, climbing pawl needs hand rotation to climb pawl when marking time, and working strength is large.Owing to climbing the scantling of structure restriction of pawl, Pa Zhaoliang center is large with the distance of marking time, and climbs pawl beam and need to bear very large eccentric torque, and climbing pawl beam needs local reinforcement, structure heaviness.(3) to support bearing pin be to be placed in the circular groove of the upper end of marking time to jacking cross beam, and with Φ 20mm lock pin anticreep, locking pin diameter is less, once occur the maloperation of receipts oil cylinder, can not effectively lock jacking cross beam, and safety and reliability is low.
Summary of the invention
The invention provides a kind of tower machine jacking anticreep control setup, improve the safety and reliability operating when climbing support climbs or declines, effectively prevent the safety misadventure that maloperation and structural distortion cause.
For solving the problems of the technologies described above, a kind of tower machine of the present invention jacking anticreep control setup, comprises climbing support and marks time, described climbing support comprises oil cylinder beam, jacking cylinder and jacking cross beam, on described oil cylinder beam, is provided with and climbs pawl; Described marking time is arranged on standard knot outside, described in climb pawl for hanging ratchet, hang ratchet and be articulated and connected on the otic placode being welded on oil cylinder beam by pawl axis, the distance between pawl axis center and main chord of standard section is less than the length that hangs ratchet; In the middle of described marking time, be provided with the fixed orifice for supporting jacking cross beam support axle, upper and lower two ends are provided with positioning groove.
As preferably, climb pawl support after and angle between main chord be 10～30 °.
Further, jacking cross beam two ends are provided with telescoping mechanism.
Further, telescoping mechanism comprises supporting seat, pivot shaft, spring and positioning plate; Described supporting seat and positioning plate are fixedly connected on jacking cross beam, and supporting seat is provided with the pilot hole with pivot shaft dimensional fits; Described pivot shaft front end is through supporting seat, and its rear end is provided with limited step, and can in the pilot hole of supporting seat, move freely front and back; Described spring is arranged between pivot shaft and positioning plate; Distance between described positioning plate front panel and supporting seat rear panel is less than the length of pivot shaft.
As preferably, pivot shaft front end is arranged to taper or spherical.
Further, telescoping mechanism also comprises the locating plate and the safety locking pin that are provided with knock hole, and described locating plate is fixedly connected between positioning plate and supporting seat, and is positioned at pivot shaft below; Described safety locking pin is fixedly connected on jacking cross beam by chain; The limited step of described pivot shaft rear end is provided with the knock hole coordinating with safety locking pin in the radial direction.
As preferably, positioning groove is circular groove.
Compared with prior art, the present invention has the following advantages:
1. the pawl of climbing of the present invention has adopted suspension pawl structures, climbing support hangs ratchet in jacking process can be accessible by marking time, without manually auxiliary, need to support time, only need very little strength can make to hang ratchet and turn to holding state, operating effort is little, labour intensity is low, and easy and simple to handle, safety has improved the jacking efficiency of climbing support effectively.
2. pawl axis of the present invention center is less than tradition to strong point eccentric throw and climbs pawl formula climbing support, and the moment of torsion that pawl axis bears is less, has alleviated structural weight.
3. jacking cross beam pivot shaft of the present invention adopts stretching structure, matches with safety locking pin, and the weight on climbing support top can bear jacking time, can effectively lock again jacking cross beam, bearing pin fracture while preventing oil cylinder maloperation.And safety locking pin inserts locking, not bearing load, structure safety and reliability in the time that pivot shaft stretches out.
4. the present invention is simple in structure, be easy to manufacture, and low cost of manufacture, and safety, reliability are high.
Accompanying drawing explanation
Fig. 1 is prior art integral structure schematic diagram;
Fig. 2 is prior art standard knot and the structural representation of marking time;
Fig. 3 is integral structure schematic diagram of the present invention;
Fig. 4 is the structural representation that the present invention hangs ratchet;
Fig. 5 is jacking cross beam holding state schematic diagram of the present invention;
Fig. 6 is that the present invention hangs ratchet holding state schematic diagram;
Fig. 7 is jacking cross beam structural representation of the present invention;
Fig. 8 is the enlarged diagram at A place in Fig. 7.
In figure: 1. climbing support, 2. oil cylinder beam, 2-1. otic placode, 3. climb pawl, 3-1. pawl axis, 4. jacking cylinder, 5. jacking cross beam, 5-1. safety locking pin, 5-2. pivot shaft, 5-3. supporting seat, 5-4. spring, 5-5. locating plate, 5-6. positioning plate, 6. marks time, 6-1. fixed orifice, 6-2. positioning groove, 7. main chord of standard section.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figures 3 to 5, a kind of tower machine of the present invention jacking anticreep control setup, comprises climbing support 1 and marks time 6, described climbing support 1 comprises oil cylinder beam 2, jacking cylinder 4 and jacking cross beam 5, on described oil cylinder beam 2, is provided with and climbs pawl 3; Described marking time 6 is arranged on standard knot outside, the described pawl 3 of climbing is for hanging ratchet, hanging ratchet is articulated and connected on the otic placode 2-1 being welded on oil cylinder beam 2 by pawl axis 3-1, distance between pawl axis 3-1 center and main chord of standard section 7 is less than the length that hangs ratchet, pawl 3 structures of climbing of climbing support 1 are to hang ratchet, hang ratchet in vertical position under Action of Gravity Field, and climbing support 1 is by mark time 6 o'clock on main chord of standard section 7, without manual operation, improve staff's safety; Described 6 centres of marking time are provided with the fixed orifice 6-1 for supporting jacking cross beam 5 pivot shaft 5-2, and upper and lower two ends are provided with positioning groove 6-2; Described jacking cross beam 5 two ends are provided with telescoping mechanism.
As shown in Figure 6, as improvement of the present invention, for the moment of torsion that pawl axis 3-1 is born is less, alleviate structural weight, described in climb pawl 3 support after and angle between main chord of standard section 7 be 10～30 °.
As shown in Figure 7 and Figure 8, as improvement of the present invention, for make jacking cross beam 5 play the effect of supporting and locking simultaneously, alleviate installer's labour intensity, further effectively prevent jacking cross beam 5 and climb pawl 3 disengagings and mark time, effectively prevent the flexible maloperation of jacking cylinder 4, improve the safety and reliability of climbing support 1, described telescoping mechanism comprises supporting seat 5-3, pivot shaft 5-2, spring 4 and positioning plate 5-6; Described supporting seat 5-3 and positioning plate 5-6 are fixedly connected on jacking cross beam 5, and supporting seat 5-3 is provided with the pilot hole with pivot shaft 5-2 dimensional fits; Described pivot shaft 5-2 front end is through supporting seat 5-3, and its rear end is provided with limited step 5-7, and can in the pilot hole of supporting seat 5-3, move freely front and back; Described spring 4 is arranged between pivot shaft 5-2 and positioning plate 5-6; Distance between described positioning plate 5-6 front panel and supporting seat 5-3 rear panel is less than the length of pivot shaft 5-2.Described telescoping mechanism also comprises the locating plate 5-5 and the safety locking pin 5-1 that are provided with knock hole, and described locating plate 5-5 is fixedly connected between positioning plate 5-6 and supporting seat 5-3, and is positioned at pivot shaft 5-2 below; Described safety locking pin 5-1 is fixedly connected on jacking cross beam 5 by chain; The limited step of described pivot shaft 5-2 rear end is provided with the knock hole coordinating with safety locking pin 5-1 in the radial direction.
Described jacking cross beam 5 penetrates in 6 the fixed orifice 6-1 of marking time on main chord of standard section 7 by pivot shaft 5-2 flexible, and with safety locking pin 5-1 lock support axle 5-2, can in the time that stretching out, pivot shaft 5-2 effectively lock the position of jacking cross beam 5, safe and reliable, effectively fix jacking cross beam 5, effectively prevented the flexible maloperation of jacking cylinder 4 simultaneously.
As a further improvement on the present invention, described pivot shaft 5-2 front end is arranged to taper or spherical, can effectively reduce friction force, pivot shaft 5-2 is more easily penetrated mark time the fixed orifice 6-1 on 6, fixes fast jacking cross beam 5.
As shown in Figure 5, as a further improvement on the present invention, described positioning groove 6-2 is circular groove, matches with hanging the bottom of ratchet, contacts more firmly, and reliability is higher.
The present invention hangs ratchet and is fixed on by pawl axis 3-1 on the welding otic placode 2-1 of oil cylinder beam 2, forms articulated structure, can swing along pawl axis 3-1.Climbing support 1, in the process of climbing, hangs ratchet and under Action of Gravity Field, keeps vertically, 6 does not have interference with marking time, and climbing support 1 does not need human assistance at 6 o'clock by marking time.Hang when ratchet supports and need manually to assist, but operating effort is little, labour intensity is low.
Tower machine jacking anticreep control setup of the present invention is climbed pawl 3 upper strata and is changed suspension ratchet into, has guaranteed that climbing support 1 structure still can provide good support in the time of stress deformation.And the pivot shaft 5-2 of jacking cross beam 5 changes stretching structure into, play the effect of supporting and locking simultaneously, effectively prevent the flexible maloperation of jacking cylinder 4, further improve the safety and reliability of climbing support.
Claims (6)
1. a tower machine jacking anticreep control setup, comprises climbing support (1) and mark time (6), and described climbing support (1) comprises oil cylinder beam (2), jacking cylinder (4) and jacking cross beam (5), is provided with and climbs pawl (3) on described oil cylinder beam (2); Described marking time (6) is arranged on standard knot outside, it is characterized in that, the described pawl (3) of climbing is for hanging ratchet, hang ratchet and be articulated and connected on the otic placode (2-1) being welded on oil cylinder beam (2) by pawl axis (3-1), the distance between pawl axis (3-1) center and main chord of standard section (7) is less than the length that hangs ratchet; In the middle of described marking time (6), be provided with the fixed orifice (6-1) for supporting jacking cross beam (5) pivot shaft (5-2), upper and lower two ends are provided with positioning groove (6-2); Described jacking cross beam (5) two ends are provided with telescoping mechanism.
2. a kind of tower machine jacking anticreep control setup according to claim 1, is characterized in that, the angle after climbing pawl (3) support and between main chord of standard section (7) is 10～30 °.
3. a kind of tower machine jacking anticreep control setup according to claim 2, is characterized in that, described telescoping mechanism comprises supporting seat (5-3), pivot shaft (5-2), spring (4) and positioning plate (5-6); Described supporting seat (5-3) is fixedly connected on jacking cross beam (5) with positioning plate (5-6), and supporting seat (5-3) is provided with the pilot hole with pivot shaft (5-2) dimensional fits; Described pivot shaft (5-2) front end is through supporting seat (5-3), and its rear end is provided with limited step (5-7), and can in the pilot hole of supporting seat (5-3), move freely front and back; Described spring (4) is arranged between pivot shaft (5-2) and positioning plate (5-6); Distance between described positioning plate (5-6) front panel and supporting seat (5-3) rear panel is less than the length of pivot shaft (5-2).
4. a kind of tower machine jacking anticreep control setup according to claim 3, it is characterized in that, described telescoping mechanism also comprises the locating plate (5-5) and the safety locking pin (5-1) that are provided with knock hole, described locating plate (5-5) is fixedly connected between positioning plate (5-6) and supporting seat (5-3), and is positioned at pivot shaft (5-2) below; Described safety locking pin (5-1) is fixedly connected on jacking cross beam (5) by chain; The limited step of described pivot shaft (5-2) rear end is provided with the knock hole coordinating with safety locking pin (5-1) in the radial direction.
5. a kind of tower machine jacking anticreep control setup according to claim 3, is characterized in that, described pivot shaft (5-2) front end is arranged to taper or spherical.
6. a kind of tower machine jacking anticreep control setup according to claim 1, is characterized in that, described positioning groove (6-2) is circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039425.3A CN103787211B (en) | 2014-01-27 | 2014-01-27 | A kind of tower machine jacking anticreep control setup |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039425.3A CN103787211B (en) | 2014-01-27 | 2014-01-27 | A kind of tower machine jacking anticreep control setup |
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| CN103787211A true CN103787211A (en) | 2014-05-14 |
| CN103787211B CN103787211B (en) | 2016-04-06 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429890A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Anti-falling device |
| CN110203838A (en) * | 2019-06-27 | 2019-09-06 | 陕西建设机械股份有限公司 | A kind of tower crane stock climbs and descending mechanism and its application method |
| CN114476088A (en) * | 2022-01-19 | 2022-05-13 | 东莞市毅新庆江机械制造有限公司 | Parachuting tower |
| CN115123943A (en) * | 2022-08-05 | 2022-09-30 | 徐州建机工程机械有限公司 | A kind of installation method of hydraulic cylinder of large tower crane |
| CN115490164A (en) * | 2022-09-22 | 2022-12-20 | 徐州建机工程机械有限公司 | Anti-falling structure and anti-falling method for climbing process of tower crane and tower crane |
| CN115744670A (en) * | 2022-11-30 | 2023-03-07 | 徐州圣淮机械有限公司 | Anti-falling mechanism for jacking cross beam of tower crane |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429890A (en) * | 2016-08-24 | 2017-02-22 | 无锡科通工程机械制造有限公司 | Anti-falling device |
| CN110203838A (en) * | 2019-06-27 | 2019-09-06 | 陕西建设机械股份有限公司 | A kind of tower crane stock climbs and descending mechanism and its application method |
| CN114476088A (en) * | 2022-01-19 | 2022-05-13 | 东莞市毅新庆江机械制造有限公司 | Parachuting tower |
| CN114476088B (en) * | 2022-01-19 | 2023-03-10 | 东莞市毅新庆江机械制造有限公司 | Parachuting tower |
| CN115123943A (en) * | 2022-08-05 | 2022-09-30 | 徐州建机工程机械有限公司 | A kind of installation method of hydraulic cylinder of large tower crane |
| CN115490164A (en) * | 2022-09-22 | 2022-12-20 | 徐州建机工程机械有限公司 | Anti-falling structure and anti-falling method for climbing process of tower crane and tower crane |
| CN115744670A (en) * | 2022-11-30 | 2023-03-07 | 徐州圣淮机械有限公司 | Anti-falling mechanism for jacking cross beam of tower crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103787211B (en) | 2016-04-06 |
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